<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>bootstrap使用</title>
    <!-- 引入 -->
    <link rel="stylesheet" href="./css/bootstrap.min.css">

    <style>
        div {
            height: 50px;
            background-color: pink;
        }
    </style>
</head>

<body>
    <!-- https://www.bootcss.com/ -->
    <div class="container"></div>
</body>

</html>